# MB_SetParentCommSize

## C Specification

      #include <nitro/mb.h>

      BOOL MB_SetParentCommSize( u16 sendSize );

## Description

Specifies the size of the MB library's send for internally-driven communication, including the maximum number of children. This function can be used to increase the efficiency of the MP communication packets when you already know the maximum number of connected devices. This function can be called only after calling the `MB_Init` function and before calling the `MB_StartParent` function.

This function is the same as the `MB_SetParentCommParam` function except it preserves the currently set maximum number of connected children.

Note that you cannot use this function to change the parent receive size.

## Arguments

`sendSize` | The send buffer size in MB parent MP communication This size must be greater than `MB_COMM_PARENT_SEND_MIN` and less than `MB_COMM_PARENT_SEND_MAX`.

## Return Values

Returns `TRUE` if the value is set in the correct range. Otherwise returns `FALSE`.

## See Also

`MB_COMM_PARENT_*, MBUserInfo, MB_Init, MB_SetParentCommParam, MB_StartParent, MB_RegisterFile`

## Revision History

11/18/2004 Discontinued the `recvSize` argument.
10/05/2004 Initial version.